| Character | Ÿ |
| Name | Latin Capital Letter Y With Diaeresis |
| Unicode Code Point | U+0178 |
| Decimal Value | 376 |
| Hex Value | 0x0178 |
| Category | Latin Extended-A |
| Windows Alt Code | Alt+0159 |
| Word Alt+X Code | 0178 + Alt+X |
| Mac Shortcut | Option+u, then Y |
| HTML Entity | Ÿ |
| HTML Code (Dec / Hex) | Ÿ / Ÿ |
| CSS Content Code | content: "\0178"; |
| JavaScript Unicode Escape | "\u{0178}" |
Latin Capital Letter Y With Diaeresis belongs to Latin Extended-A, a Unicode block created specifically to give Central and Eastern European languages full native-alphabet support in digital text — before Unicode, each language often needed its own incompatible code page.
Unicode block: Latin Extended-A (U+0100–U+017F). Latin Extended-A covers accented and modified Latin letters needed for Central European, Baltic, and Nordic languages (Czech, Polish, Croatian, Turkish, and more) that Latin-1 didn't include.
At Unicode code point U+0178 (decimal 376), Latin Capital Letter Y With Diaeresis is the 121st of 128 characters cataloged in this category on How To Type Any Symbol. In terms of typing methods, it is one of the characters in this block with both a documented Windows Alt code and a Mac keyboard shortcut, making it typeable without copy-paste on either platform. Regardless of platform, clicking the copy button above places the exact character on your clipboard, ready to paste into any application that accepts Unicode text.
💡 Good to know: This letter typically has no Windows Alt code because it falls outside the Windows-1252 codepage — copy-paste (the button above) is the most reliable method.
Hold Alt and type 0159 on the numeric keypad.
Press Option+u, then Y.
Click the symbol above to copy it, then paste anywhere — works on every device and OS.
Use the entity Ÿ in your HTML.